Gas-heater.



A. H. EDDY.

GAS HEATER.

APPLlcATloN FILED APR.14. 1915.

1 147,3 1 5 Patented July 20, 1915.

Fig'. 1 y

AT TEENS 'y' COLUMBIA PLANOGRAPH e0.,W/\smNGfroN. D.' c.'

,narran sraras rarnxr arriba.

ALBERT HENRY EDDY, oF EDeEwooD STATION, RHODE IsLAND.

To allzu/1,0mz't may concern: 'f Y l Be it known that I, ALBERT HENRYEDDY, a citizen of the United States,'residing at Edgewood Station, inthe county of Providence and State of Rhode Island, have invented a newand useful Improvement in Gas-Heaters, ofy which the" following is aspecification.

My invention has reference to an improvement in gas heating appliancesand.V more particularly to an improvement in gas heaters of the Bunsenor high temperature type.

rIhe objectof my invention is to improve the construction of a gasheater of the Bunsen type, whereby a more perfect combus-` tion and ahotter flame is produced, with a minimum amount of gas, than hasheretofore been done.

Further objects of my invention are to simplify the construction andoperation and to produce an intensely hot flame at a minimum of cost forgas. l

My invention consists in the peculiar and novel construction of a gasheater of the Bunsen type, said gas heater having details ofconstruction, as will be more fully set forth hereinafter' and claimed.

Figure 1, is a side view in elevation of my improved gas heater. Fig. 2,is a top plan view of the heater, and Fig. 3, is a vertical sectionalview ofthe heater taken on line 3. 3. of Fig. 2, and showing the lowerfixed valve member in full lines.

In the drawing, 5 indicates the base member and 6 the burner member ofmy improved gas heater. The base 5 is a comparatively heavy rectangularshaped block of metal having a gas inlet pipe 7, connected to ahorizontal gas inlet duct 8 controlled by a transverse tapered plugvalve 9, having a port 10. This valve 9 has a coiled spring 11intermediate the side of the base 5 and the head of a screw 12 in theend of the valve, which holds the valve tight under spring tension and ahandle 13 on the op posite end for operating the valve, which is limitedin its opening and closing movements by stop pins 14. 14 on the base 5,as shown in Fig. 1. rIhe gas duct 8 connects with a central gas chamber15, which first extends vertically through the base 5 and is internallyscrew-threaded at its upper and lower ends. A fixed valve member 16 isscrewed into and closes the lower end of the gas chamber 15, and has thecontracted cone-shaped upperend 17. A circular conbase 5',

GAS-JUiLATIElIt.44 i

\ Patented'July 20, 11915,.

Application mea April 14, 1915. serial np. 214,298..

centric lboss. 18 is formed `on the top of the and a vpilot-light tube19 is secured to the base 5 and extends from the gas duct 8 upwardto thetop ofthe burner 6, as shown in Fig. 3. i

The burner member 6 has a lower. hollow circular dome-shaped portion 2OIwhich fits over the boss 18 on the base 5, and merges upward into-astraight, contracted tubular portionl 21, which is further contractedat its upper end in the form of a truncated cone-shaped burner tip `22.|Ihe dome shaped portion20- has va seriesI of air inlet openings 23. 23in its sides, a raised bottom 24 in which is a series ofholes 25 andforms' a mixing chamber '26. The bottom 24 carries a central verticalscrew-'threaded valve member27 which screws into the upper end ofthe gaschamber 15 and has a central yvertical shaped valve seat 29 on its lowerend, in a position' to engage with thel cone-shaped end 17 of they fixed`valve member'16,"as shown in`Fig. 3. p

l/Vhen lin use the pipe 7 is connected to a 'source of gas supply, notshown, and the gas turned on. The gasat the end of the tube 19 islighted and forms a minute'pilot light. The valve 9 is opened, and thevalve seat 29 raised out of engagement with the end 17 of the valvemember 16, by turning the burner 6v until the required amount and forceof gas through the burner 6 is obtained. The

gas rushing through the duct 28, mixing chamber 26, portion 21 and tip22 is ignited gas duct 28 and a .conefi on the tip 22 by the pilot lighton the tip of the tube 19. By this construction thev amount of gas isregulated bythe valve 9, the fo'rce of gas through the mixingchamber 26is regulated by turning the burner 6 and the large size of the mixingchamber 26, as compare-d with the burner tip 22, gives a more perfectmixture of air and gas a more perfect combustion and a hotter flame atthe burner tip 22, than has heretofore been obtained. Any gas when inoperation that may escape from vthe chamber 15 by the valve member 27would rise through the y Having thus described my inventionl I claim asnevv:-

l. A gas heater having a base, a central gas chamber in the base, a gasduct through the base into the gas chamber, a valve con- Y trolling thegas duct, a fixed valve member having a contracted cone-shaped end inthe gas chamber, a burner having a comparatively large mixing chamber,air openings in the sides of the mixing chamber, a contraeted tip and acentral valve member havinv a gas duct and a cone-shaped valve seatcoaeting with the cone-shaped end of the valve member in the gaschamber, and means for rotatably and adjustably securing the burner tothe base.

2. A gas heater having a base, a central gas chamber extendingvertically in the base, a horizontal ygas duct through the base into thegas chamber, a valve controlling the gas duct, a valve member' in thegas chamber and closing the lower end of the gas chamber, a burnerhaving a comparatively large mixing chamber, air openings in the sidesof the mixing chamber, a contracted tip and a central valve memberhaving a gas duct and coacting with the valve member in the gas chamber,and means 'for rotatably and adjustably securing the burner to the baseconsisting of screw-threading the valve member on the burner into thetop of the gas chamber in the base.

3. A gas heater having a base, a central gas chamber extendingvertically in the base, a horizontal gas duet through the base into thegas chamber, a valve controlling the gas duct, a tube extending upwardfrom the gas duct for a pilot light, a circular raised boss on the topof the base, a valve member in the gas chamber, a burner having acomparatively large circular mixing chamber over the boss on the base,air openings in the sides of' the mixing chamber, a contracted tip, araised bottom having a series of holes, and a central valve memberhaving a vertical gas duct and coacting with the valve member in the gaschamber, and means for rotatably and adjustably securing the burner tothe base, consisting of screw-threading the valve member on the burnerinto the top of the gas chamber in the base.

et. A gas heater having a base, a central gas chamber in the base, a gasduct through the base into the gas chamber, a fixed valve member in thegas chamber, a burner having a comparatively large inelosed mixingchamber, with air openings, a contracted burner tip and a valve memberwhich enters the gas chamber in the base and coacts With the fixed valvemember in the gas chamber, and means for rotatably and adj ustablysecuring the valve member on the burner, in the gas chamber in the base.

In testimony whereof, l have signed my name to this specification.

ALBERT HENRY EDDY,

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

